Hung internet explorer

I've been having a problem with internet explorer freezing on me for a couple weeks.  It keeps sending "hungapp" errors to microsoft.  i've been reading other posts and a lot of people talk about spyware.  i doubt this is the case since i regularly run adaware, spybot s&d and spyware blaster.  i have also run sfc /scannow (per microsoft article) and it has found nothing.  any other suggestions? 

 

thanks

jackie